Medha Devi, Ongnam. Spectral studies of 4f-4f transitions of some selected trivalent lanthanide metal complexes with multidentate nitrogen/oxygen donor ligands / by Ongnam Medha Devi. - Ph.D. / - Imphal : Manipur University , 2009 - 245p,17 : Subjects--Topical Terms: Chemistry- Lanthanide Metal complexes Dewey Class. No.: E / P9;2